区域电网省级AGC控制区的灵活组合控制策略
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摘要
针对省级控制区在电网调峰或事故处置等特殊时段存在备用不足的问题,提出省级控制区灵活组合控制的架构和策略。区域电网调控中心按照相邻区域备用共享等原则统筹决策,灵活选择省级控制区参与联合控制。首先基于现有各省级控制区边界模型和区域控制偏差(ACE)计算模式,区域电网自动发电控制计算各子控制区ACE后通过叠加快速得到组合控制区的ACE。然后结合省调实时上送的备用等信息,并考虑最低预留备用、频率偏差系数、实际可调等因素对组合控制区的ACE进行优化分配,经过省间(内)断面安全校验后下发给省级控制区执行。实现了打破省间壁垒实现控制区间备用的实时共享和事故下的紧急支援,减少控制区间的反向无谓调节。通过实际运行验证了控制策略的有效性。
To solve the problem of inadequate reserve of provincial control areas during special periods such as peak load regulation or accident disposal, the structure and strategy of flexible combination control for provincial areas is proposed. Regional power grid dispatch center flexibly selects provincial control areas to participate in joint control according to the principles such as reserve sharing in adjacent areas. Firstly, based on the existing boundary model of provincial control areas and area control error(ACE) calculation mode, automatic generation control(AGC) in regional power grid calculates the ACE of each sub-control area and then quickly obtain the ACE of the combined control area by superposition. Secondly, based on the uploaded information such as real-time reserve of provincial grid and considering factors of minimum reserve, frequency deviation coefficient and actual adjustable reserve, ACE of the combined control areas is distributed optimizedly to provincial grids for execution after grid security check of provincial(inter-provincial) sections. The goal of breaking the provincial barriers for reserve sharing and emergency support in case of accidents is achieved while reducing the unnecessary reverse regulation of control areas. The effectiveness of the control strategy is verified through the actual operation.
To solve the problem of inadequate reserve of provincial control areas during special periods such as peak load regulation or accident disposal, the structure and strategy of flexible combination control for provincial areas is proposed. Regional power grid dispatch center flexibly selects provincial control areas to participate in joint control according to the principles such as reserve sharing in adjacent areas. Firstly, based on the existing boundary model of provincial control areas and area control error(ACE) calculation mode, automatic generation control(AGC) in regional power grid calculates the ACE of each sub-control area and then quickly obtain the ACE of the combined control area by superposition. Secondly, based on the uploaded information such as real-time reserve of provincial grid and considering factors of minimum reserve, frequency deviation coefficient and actual adjustable reserve, ACE of the combined control areas is distributed optimizedly to provincial grids for execution after grid security check of provincial(inter-provincial) sections. The goal of breaking the provincial barriers for reserve sharing and emergency support in case of accidents is achieved while reducing the unnecessary reverse regulation of control areas. The effectiveness of the control strategy is verified through the actual operation.
引文
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[19] 刘娆,常烨骙,巴宇,等.互联电网运行控制性能评价标准研究:(一)制定原则和需解决的问题[J].电力系统自动化,2015,39(18):133-139.LIU Rao,CHANG Yekui,BA Yu,et al.Research on operation control performance assessment criteria of China’s interconnected power grids:Part one principles of formulation and issues to be addressed[J].Automation of Electric Power Systems,2015,39(18):133-139.
[2] 高宗和,滕贤亮,张小白.互联电网CPS标准下的自动发电控制策略[J].电力系统自动化,2005,29(19):40-44.GAO Zonghe,TENG Xianliang,ZHANG Xiaobai.Automatic generation control strategy under control performance standard for interconnected power grids[J].Automation of Electric Power Systems,2005,29(19):40-44.
[3] 张彦涛,任景,孙骁强,等.基于广义联络线网省协调的两阶段实时发电计划模型[J].电力系统自动化,2015,39(6):128-133.ZHANG Yantao,REN Jing,SUN Xiaoqiang,et al.Two-stage real-time generation scheduling model based on coordination of regional and provincial power grid generalized tie-line[J].Automation of Electric Power Systems,2015,39(6):128-133.
[4] 胡泽春,罗浩成.大规模可再生能源接入背景下自动发电控制研究现状与展望[J].电力系统自动化,2018,42(8):2-15.DOI:10.7500/AEPS20171025015.HU Zechun,LUO Haocheng.Research status and prospect of automatic generation control with integration of large-scale renewable energy[J].Automation of Electric Power Systems,2018,42(8):2-15.DOI:10.7500/AEPS20171025015.
[5] 席磊,柳浪,黄悦华,等.基于虚拟狼群策略的分层分布式自动发电控制[J].电力系统自动化,2018,42(16):65-72.DOI:10.7500/AEPS20180104010.XI Lei,LIU Lang,HUANG Yuehua,et al.Hierarchical and distributed control method for automatic generation control based on virtual wolf pack strategy[J].Automation of Electric Power Systems,2018,42(16):65-72.DOI:10.7500/AEPS20180104010.
[6] 周毅,钱学东.华东电网动态区域控制误差应用分析[J].电力系统自动化,2010,34(8):106-110.ZHOU Yi,QIAN Xuedong.Applications analysis of dynamic ACE in East China power grid[J].Automation of Electric Power Systems,2010,34(8):106-110.
[7] 李卫东,常烨骙,陈兆庆,等.区域控制偏差的动态内涵[J].电力系统自动化,2016,40(24):146-150.LI Weidong,CHANG Yekui,CHEN Zhaoqing,et al.Dynamic contents of area control error[J].Automation of Electric Power Systems,2016,40(24):146-150.
[8] 谈超,滕贤亮,闵亮,等.基于修正区域控制偏差的多区域协同控制技术:(二)问题建模与改进方法[J].电力系统自动化,2017,41(2):121-128.DOI:10.7500/AEPS20160608015.TAN Chao,TENG Xianliang,MIN Liang,et al.Technologies for coordinated control among multiple control areas based on ACE correction:Part two problem formulation and potential solutions[J].Automation of Electric Power Systems,2017,41(2):121-128.DOI:10.7500/AEPS20160608015.
[9] 马晓伟,徐瑞,滕贤亮.基于事件驱动的西北电网紧急备用支援技术[J].电网技术,2018,42(8):2645-2650.MA Xiaowei,XU Rui,TENG Xianliang.Emergency reserve support technology basing on event-driven for Northwest power grid of China[J].Power System Technology,2018,42(8):2645-2650.
[10] 谈超,戴则梅,滕贤亮,等.基于修正区域控制偏差的多区域协同控制技术:(一)驱动、现状与发展建议[J].电力系统自动化,2017,41(1):88-94.DOI:10.7500/AEPS20160608014.TAN Chao,DAI Zemei,TENG Xianliang,et al.Applied technology of coordinated control among multiple control areas based on ACE correction:Part one driving force,state-of-the-art and proposed development[J].Automation of Electric Power Systems,2017,41(1):88-94.DOI:10.7500/AEPS20160608014.
[11] IRISARRI G D,LATIMER J R,MOKHTARI S,et al.The future of electronic scheduling and congestion management in North America[J].IEEE Transactions on Power Systems,2003,18(2):444-451.
[12] United States Department of Energy.Transmission constraints and congestion in the western and eastern interconnections,2009—2012[EB/OL].[2018-05-05].http://energy.gov/sites/prod/files/2014/02/f7/TransConstraintsCongestion-01-23-2014%20.pdf.
[13] ZOLOTAREV P,GOKELER M,KURING M,et al.Grid control cooperation-a framework for technical and economical cross-border optimization for load-frequency control[C]// CIGRE 2012,August 26-31,2012,Paris,France.
[14] US Department of Energy.Analysis methodology for balancing authority cooperation in high penetration of variable generation[EB/OL].[2018-05-05].http://www.pnl.gov/main/publications/external/technical_reports/PNNL-19229.pdf.
[15] DIAO R,SAMAAN N,MAKAROV Y,et al.Planning for variable generation integration through balancing authorities consolidation[C]// IEEE PES General Meeting,July 22-26,2012,San Diego,USA.
[16] NERC ACE Diversity Interchange Task Force.Reliability guideline:ACE diversity interchange[EB/OL].[2018-05-07].https://www.nerc.com/comm/oc/reliability%20guideline%20dl/adi_reliability_guideline_final_12-13%202012.pdf.
[17] JALEELI N,VANSLYCK L S.NERC’s new control performance standards[J].IEEE Transactions on Power Systems,1999,14(3):1092-1099.
[18] 谈超,戴则梅,滕贤亮,等.北美频率控制性能标准发展分析及其对中国的启示[J].电力系统自动化,2015,39(18):1-7.TAN Chao,DAI Zemei,TENG Xianliang,et al.Development of frequency control performance standard in North America and its enlightenment to China[J].Automation of Electric Power Systems,2015,39(18):1-7.
[19] 刘娆,常烨骙,巴宇,等.互联电网运行控制性能评价标准研究:(一)制定原则和需解决的问题[J].电力系统自动化,2015,39(18):133-139.LIU Rao,CHANG Yekui,BA Yu,et al.Research on operation control performance assessment criteria of China’s interconnected power grids:Part one principles of formulation and issues to be addressed[J].Automation of Electric Power Systems,2015,39(18):133-139.